reversal of $(572,000) and $(507,000) of compensation expense related to the Fiscal 2021 LTIP, respectively, due to a change in estimate resulting from a decrease in the estimated achievement. At October 29, 2022, the maximum compensation expense that may be recorded for the performance-based portion of the Fiscal 2021 LTIP is $5,858,000.
During the three months ended July 27, 2019, the Company also granted awards under the Restated 2006 Plan to key employees (“Fiscal 2020 LTIP”). Awards under the Fiscal 2020 LTIP consist of: (i) time-based restricted stock awards, which vest in equal tranches in July 2020, July 2021 and July 2022, and (ii) PRSUs, which vest based on the Company’s achievement of revenue and operating income targets for the three-year period ending April 30, 2022. During the three months ended July 31, 2022, the Company issued a total of 5,678 fully-vested shares of the Company’s common stock to settle the PRSUs in the Fiscal 2020 LTIP. For the three and six months ended October 29, 2022, the Company recorded no compensation expense related to the Fiscal 2020 LTIP, respectively. For the three and six months ended October 30, 2021, the Company recorded a reversal of $(617,000) and $(619,000) of compensation expense related to the Fiscal 2020 LTIP, respectively, due to a change in estimate resulting from a decrease in the estimated achievement.
At each reporting period, the Company reassesses the probability of achieving the performance targets for the PRSUs. The estimation of whether the performance targets will be achieved requires judgment, and to the extent actual results or updated estimates differ from the Company’s current estimates, the cumulative effect on current and prior periods of those changes will be recorded in the period estimates are revised. No compensation cost is ultimately recognized for awards for which employees do not render the requisite service and are forfeited.
15. Income Taxes
For the three and six months ended October 29, 2022, the Company recorded a benefit from income taxes of $(10,457,000) and $(7,851,000) yielding an effective tax rate of 66.1% and 37.2%, respectively. For the three and six months ended October 30, 2021, the Company recorded a benefit from income taxes of $(9,511,000) and $(10,468,000) yielding an effective tax rate of 117.6% and 48.0%, respectively. Historically, the Company calculated the provision for income taxes during interim reporting periods by applying an estimate of the annual effective tax rate (“AETR”) for the full fiscal year to the pretax income or loss for the interim reporting period. For the three and six months ended October 29, 2022, the Company calculated the provision for income taxes using a discrete effective tax rate (“ETR”) method. The Company determined that due to the fact small changes in the Company’s estimated pretax income or loss would result in significant changes in the estimated AETR, the historical method would not provide a reliable estimate for the three and six months ended October 29, 2022. The variance from statutory rates for the three and six months ended October 29, 2022 was primarily due to a combination of federal R&D credits and the foreign-derived intangible income deduction. The variance from statutory rates for the three months ended October 30, 2021 was primarily due to a change in estimate of full year projected income (loss) before income taxes, federal R&D credits and the recording of discrete excess tax benefits resulting from the vesting of restricted stock awards and exercises of stock options. The variance from statutory rates for the six months ended October 30, 2021 was primarily due to federal R&D credits and the recording of discrete excess tax benefits resulting from the vesting of restricted stock awards and exercises of stock options.
16. Share Repurchase Plan and Issuances
In September 2015, the Company’s Board of Directors authorized a program to repurchase up to $25,000,000 of the Company’s common stock. No shares were repurchased under the program during the six months ended October 29, 2022 or October 30, 2021. As of April 30, 2022, approximately $21,200,000 remained authorized for future repurchases under this program. In September 2022, the Company’s Board of Directors terminated the repurchase program effective immediately.
On September 8, 2022 the Company filed an S-3 shelf registration statement to offer and sell shares of the Company’s common stock, including a prospectus supplement in relation to an Open Market Sale AgreementSM, also dated September 8, 2022, with Jefferies LLC relating to the proposed offer and sale of shares of our common stock having an aggregate offering price of up to $200,000,000 from time to time through Jefferies LLC as the sales agent. As of October 29, 2022, the Company has sold 125,441 of its shares for total gross proceeds of $12,700,000, and the Company has $187,300,000 aggregate offering price remaining available under the registration.